The formulae for change in entropy
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Metallurgical Engineering · all questionsMetallurgical Thermodynamics and Kinetics
Metallurgical Thermodynamics and Kinetics
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Critical value of the Gibbs energy of nucleation at equilibrium temperature is
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The constant term "2" in mathematical expression for phase rule is stands for
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Consider a reaction with activation energy of 8.314 kJ/mol that takes place at 300 K. If the reaction rate is to be tripled, the temperature of the reaction should be
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During the reduction of an oxide of hydrogen gas, it is observed that the rate of reaction increases by almost three fold due to a slight increases in temperature. The most likely rate controlling step is
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The chemical potential of a component 1 in a solution is given by, μi =
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Isothermal compressibility of a material is given by
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The process in which all small steps are in equilibrium, so that entire process is in equilibrium is
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pure nickel melts at 1726K at 105 Pa (1 atm.) pressure, ΔV (solid-liquid) = 0.26 × 10-6 m3 . mol-1 and the heat of fusion, ΔHf = 18000 J.mol-1. The melting point of pure nickel, when acted upon by a pressure of 108 Pa is . . . . . . . . K.
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What will be the degree of freedom for single phase system of binary system?
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Which one of the following is not an intensive property?
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Activation energy of a chemical reaction, homogeneous or heterogeneous, is graphically estimated from a plot between
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2cu(s) + 0.5 O2(g) = Cu2O(s);
ΔG° = - 162200 + 69.24 T, J
2Cu(l) + 0.5 O2(g) = CU2O(s);
ΔG° = - 1188300 + 88.48 T, J
The molar free energy/change at 1300 K for the transformation of solid Cu to liquid Cu will be . . . . . . . . J.
ΔG° = - 162200 + 69.24 T, J
2Cu(l) + 0.5 O2(g) = CU2O(s);
ΔG° = - 1188300 + 88.48 T, J
The molar free energy/change at 1300 K for the transformation of solid Cu to liquid Cu will be . . . . . . . . J.
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Which of the following partial derivative is equal to
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Heat capacity at constant pressure is defined by
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In thermodynamics, the law of conservation of energy is expressed in the form of
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Which of the following phase will have lowest entropy
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The first law of thermodynamics can be stated as:
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Integral enthalpy of mixing (in J/mol) of liquid (Cu, Zn) solution can be approximated by ΔHmmix = - 19250 XCuXZn
The corresponding partial molar enthalpy of mixing (in J/mol) for Cu is
The corresponding partial molar enthalpy of mixing (in J/mol) for Cu is
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The sequence of processes which return back to its initial point is called
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